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US 5,996,754 AGranted
Electro-mechanical clutch actuator
AssigneeChrysler Corporation
InventorsRichard G. Reed, Jr., Donald L. Carriere
Life of this patent
Estimating the term…
Abstract
An electro-mechanical clutch actuator is provided for disengaging a clutch of a transmission. The clutch actuator includes an assist spring for reducing the amount of motor torque required for operating the clutch actuator. The clutch actuator also includes a self adjustment feature which accommodates for clutch disk wear.
Claims9
A clutch actuator for disengaging a clutch, comprising:
- a rotary drive member;
- a first arm member attached to said rotary drive member;
- a pawl teeter assembly pivotally mounted on an end of said first arm member, said pawl teeter assembly including a pawl at one end thereof and a follower at a second end thereof;
- an adjuster plate rotatably mounted about a common axis with said first arm member and having a semicircular radial surface having a plurality of ratchet teeth for adjustable engagement by said pawl;
- a second arm member mounted for rotation with said adjuster plate;
- a clutch disengagement cam assembly including a cam retainer lever drivingly attached to said second arm member, said cam retainer lever rotatably supported by a hub, said hub supporting a cam member in engagement with said cam retainer member such that upon rotation of said cam retainer lever, said cam member moves axially relative to said cam retainer lever and presses against an arm of a linkage assembly for disengaging a clutch.
3 more elements
A dual cam assembly, comprising:
- a hub member;
- a first cam retainer including a ring shaped body portion rotatably mounted to said hub member and a lever arm extending from said ring shaped body portion;
- a second cam retainer including a ring shaped body portion rotatably mounted to said ring shaped body portion of said first cam retainer and including a lever arm extending from said ring shaped body portion;
- a first cam member nonrotatably engaged with said hub member and in engagement with said first cam retainer wherein upon rotation of said first cam retainer, said first cam member moves axially relative to said first cam retainer;
- and
- a second cam member nonrotatably engaged with said first cam member and in engagement with said second cam retainer wherein upon rotation of said second cam retainer, said second cam member moves axially relative to said second cam retainer.
3 more elements
A clutch actuator system for disengaging a pair of clutches of a transmission having dual input shafts, comprising:
- first and second clutch actuator assemblies each including a rotary drive member, a first arm member attached to said rotary drive member, a pawl teeter assembly pivotally mounted on an end of said first arm member, said pawl teeter assembly including a pawl at one end thereof and a follower at a second end thereof, an adjuster plate rotatably mounted about a common axis with said arm member and having a semicircular radial surface having a plurality of ratchet teeth for adjustable engagement by said pawl of said pawl teeter assembly and a second arm member mounted for rotation with said adjuster plate;
- a clutch disengagement cam assembly including a hub member, a first cam retainer including a ring shaped body portion rotatably mounted to said hub member and a lever arm extending from said ring shaped body portion and drivingly attached to said second arm member of said first clutch actuator assembly, a second cam retainer including a ring shaped body portion rotatably mounted to said ring shaped body portion of said first cam retainer and including a lever arm extending from said ring shaped body portion and drivingly attached to said second arm member of said second clutch actuator assembly, a first cam member nonrotatably engaged with said hub member and in engagement with said first cam retainer wherein upon rotation of said first cam retainer, said first cam member moves axially relative to said first cam retainer, and a second cam member nonrotatably engaged with said first cam member and in engagement with said second cam retainer wherein upon rotation of said second cam retainer, said second cam member moves axially relative to said second cam retainer;
- and
- a first lever assembly engaged with said first cam member and a second lever assembly engaged with said second cam member for disengaging first and second clutch assemblies, respectively.
1 more element
Dependencies are inferred from the claim text.